title: A new approach to quantification of spermatogenesis and its application to germinal cell attrition during human spermiogenesis.
mesh_terms: D000328:Adult; D005404:Fixatives; D005976:Glutaral; D006801:Humans; D007985:Leydig Cells / Q000648:ultrastructure; D008297:Male; D008875:Middle Aged; D012708:Sertoli Cells / Q000648:ultrastructure; D013076:Sperm Count; D013087:Spermatids / Q000648:ultrastructure; D013090:Spermatocytes / Q000648:ultrastructure; D013091:Spermatogenesis; D013737:Testis / Q000378:metabolism* / Q000648:ultrastructure
chemical_list: D005404:Fixatives; D005976:Glutaral